101561204 has 6 divisors (see below), whose sum is σ = 177732114. Its totient is φ = 50780600.

The previous prime is 101561203. The next prime is 101561221. The reversal of 101561204 is 402165101.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 357604 = 10060^2 + 598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101561203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12695147 + ... + 12695154.

It is an arithmetic number, because the mean of its divisors is an integer number (29622019).

Almost surely, 2^101561204 is an apocalyptic number.

It is an amenable number.

101561204 is a deficient number, since it is larger than the sum of its proper divisors (76170910).

101561204 is a wasteful number, since it uses less digits than its factorization.

101561204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390305 (or 25390303 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 101561204 is about 10077.7578855616. The cubic root of 101561204 is about 466.5619100462.

The spelling of 101561204 in words is "one hundred one million, five hundred sixty-one thousand, two hundred four".